L Carnitine Benefits: A Complete Research Based Guide Comparison of short term and long term effects of peroral L carnitine intake: clinical implications of elevated TMAO levels in cardiovascular complications The effect of l carnitine supplementation on mortality and clinical outcomes in ventilator dependent critically ill patients with obesity and COVID 19: Protocol for a randomized double blind placebo controlled trial ScienceDirect l Carnitine and heart disease ScienceDirect Carnitine: the claims and why it may not work